Guitar string changing tool case



FIG. 1 is a top perspective view of the guitar string changing tool case showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a left side view thereof;

FIG. 9 is a top perspective view of the guitar string changing tool case when opened;

FIG. 10 is a back view thereof;

FIG. 11 is a top view thereof;

FIG. 12 is a right side view thereof;

FIG. 13 is a left side view thereof;

FIG. 14 is a bottom view thereof; and,

FIG. 15 is a front side view thereof. 

The ornamental design for a guitar string changing tool case, as shown and described. 